From: Vinod Koul <vkoul@kernel.org>
To: p.zabel@pengutronix.de, Bumyong Lee <bumyong.lee@samsung.com>
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dmaengine: pl330: issue_pending waits until WFP state
Date: Thu, 21 Dec 2023 22:00:26 +0530 [thread overview]
Message-ID: <170317622670.683420.3881501030324253538.b4-ty@kernel.org> (raw)
In-Reply-To: <20231219055026.118695-1-bumyong.lee@samsung.com>
On Tue, 19 Dec 2023 14:50:26 +0900, Bumyong Lee wrote:
> According to DMA-330 errata notice[1] 71930, DMAKILL
> cannot clear internal signal, named pipeline_req_active.
> it makes that pl330 would wait forever in WFP state
> although dma already send dma request if pl330 gets
> dma request before entering WFP state.
>
> The errata suggests that polling until entering WFP state
> as workaround and then peripherals allows to issue dma request.
>
> [...]
Applied, thanks!
[1/1] dmaengine: pl330: issue_pending waits until WFP state
commit: d114d3a096194fb2a9c3bedd7be6587b97610625
Best regards,
--
~Vinod
next prev parent reply other threads:[~2023-12-21 16:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20231219055052epcas2p4bb1d8210f650ab18370711db2194e8e3@epcas2p4.samsung.com>
2023-12-19 5:50 ` [PATCH] dmaengine: pl330: issue_pending waits until WFP state Bumyong Lee
2023-12-21 16:30 ` Vinod Koul [this message]
2023-12-24 15:40 ` Chen-Yu Tsai
2023-12-27 2:09 ` bumyong.lee
2024-01-08 16:51 ` Chen-Yu Tsai
2024-01-09 1:18 ` bumyong.lee
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